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19
EN
EN
Troubleshooting
Maintenance
Marey Electric Tankless Water Heater by Wahlbach
Marey Electric Tankless Water Heater by Wahlbach
5. Maintenance
Maintenance
This device does not require any maintenance by the user. Professional mainte-
nance may only be carried out by duly authorized technical staff. Maintenance,
e.g. verifying electrical safety, should only be undertaken by a qualified electri-
cian, observing the relevant regulations (IEEE, etc.).
If faulty, please take follow the trouble shooting in page.19 to make the di-
agnosis. If still have problem, never try to repair the hot water device yourself,
please contact the nearest service specialist for help.
Care
The enclosure can simply be cleaned with a damp cloth. Do not use aggressive
cleaners or cleaner’s with a scouring effect!
Legislation prevention
Do not use heated water as drinking water.
After prolonged shutdown of the device for example after vacation, pipes should
be flushed for one minute.
Check the filter which is incorporated in the cold water inlet of the device (blue)
regularly and keep it free from debris and dirt. This can be accessed by sepa-
rating the device from the tap. Make sure you have switched off the main power
supply and the main water supply.
6. Troubleshooting
First aid
• Check the leakage protection switch and the fuses.
• Check if any fittings or shower head are affected by the build-up of lime scale
or dirt.
• See also “Troubleshooting by users“.
Troubleshooting by users
Problem
Cause
Solution
No heat, no LED dis-
play
Electric supply is
OFF or not turn on
the appliance
Switch on the main circuit break-
er, touch “
①
“ twice to turn on
the appliance.
No or low water
flow
Full open the hot-water tap. Also
check that the inlet filter screen is
clear from any debris.
Water connections
are reversed
Cold water inlet = blue; Hot water
outlet = red.
Element burned
out
Please call for your local service.
Only slight heat
Too low outlet tem-
perature setting or
too high flow rate
Set higher outlet temperature(see
page 15 ) or decrease the maxi-
mum water flow(see page.16 ).
Wrong voltage of
power supply
Only model PP4 & PPS4 need the
100-120V power supply, other
models need 208-240V power
supply. Please check the voltage
of power supply.
No heat, LED display
“E2”
Internal part failure Please call for your local service.
If the appliance still fails to operate after you have executed this procedure,
please inform customer service.